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Frozen H block tip

vfltennessee

Newbie
Joined
Dec 21, 2014
Messages
34
Decided to re-center the valve in the H block to get the brake warning light to turn off. Pretty easy until the time came to pull the valve and clean out the block - FROZEN! Anyway, after PB blasting and tugging several times, decided to get it out the hydraulic way. Plugged four of the side holes with brass plugs and the remaining passenger side hole with a male/female fitting. Unscrewed the tip off the grease gun and threaded it into the m/f fitting. One pump on the gun and the valve came right out. Thought this might be useful to someone trying to do the same. Beats buying a new/used block!
 

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sanndmann3

Contributor
Bronco Guru
Joined
Jun 13, 2007
Messages
1,756
Great tip! Need to remember this as my darn warning light is on as well... :)
 

hankjr

Contributor
Bronco Guru
Joined
May 11, 2013
Messages
1,757
Perfect! I did the same to push out stick caliper pistons when I built the FJ40. Worked slicker than...

Hank
 

bulletpruf

Contributor
Full Member
Joined
Mar 31, 2019
Messages
360
Who sells correct H blocks? Doesn't need to be concours, but I'd rather not get a universal fit one. I'm working on a crusty '69 with 4 wheel drums.

Thanks
 

hankjr

Contributor
Bronco Guru
Joined
May 11, 2013
Messages
1,757
Thanks, I appreciate it.

no problem. if you happen to go the rebuild route, ping me as i have a bag of the right orings for the job. had to buy like 50 to get the 2 i needed

Hank
 

bulletpruf

Contributor
Full Member
Joined
Mar 31, 2019
Messages
360
no problem. if you happen to go the rebuild route, ping me as i have a bag of the right orings for the job. had to buy like 50 to get the 2 i needed

Hank

I haven't figured out what route I'm going yet, but with a new H block being that expensive, a rebuild sounds mighty fine. What's involved? Cleaning it out and replacing the o-rings?

Thanks

Scott
 

hankjr

Contributor
Bronco Guru
Joined
May 11, 2013
Messages
1,757
I haven't figured out what route I'm going yet, but with a new H block being that expensive, a rebuild sounds mighty fine. What's involved? Cleaning it out and replacing the o-rings?

Thanks

Scott

yes its pretty straight forward. get good and clean and new orings. clean brake fluid to lube on reassembly. clean the outside based on your particular level of OCD

Hank
 

LUBr LuvR

Contributor
Bronco Guru
Joined
Dec 31, 2015
Messages
1,656
Decided to re-center the valve in the H block to get the brake warning light to turn off. Pretty easy until the time came to pull the valve and clean out the block - FROZEN! Anyway, after PB blasting and tugging several times, decided to get it out the hydraulic way. Plugged four of the side holes with brass plugs and the remaining passenger side hole with a male/female fitting. Unscrewed the tip off the grease gun and threaded it into the m/f fitting. One pump on the gun and the valve came right out. Thought this might be useful to someone trying to do the same. Beats buying a new/used block!

Anyone know the thread sizes on the male/female fitting used to attach the grease gun? Can always bring along the H-block and tip from the grease gun.
 

4xfun

Jr. Member
Joined
May 16, 2005
Messages
55
what is the oring size. Hopefully I will never need to know, but with my luck, it will be tomorrow.
 
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